The penultimate episode of Grey’s Anatomy was an explosive one. Owen learned the fate of his sister, and Stephanie may have made the ultimate sacrifice to save a little girl.

Representatives from the military showed up at Owen’s house and informed him that his sister Megan was alive. While serving in the Army, Megan was in a helicopter crash, and despite her body never being found, Owen assumed she was dead. Although the news was happy, the guilt of having moved on with his life left Owen feeling miserable. As he was talking to Amelia, Owen broke down, saying, “I left Megan in a hole in the ground for almost 10 years. Weeks would go by, and I … didn’t give her a thought. I couldn’t spare her a thought when she was being held and tortured.”

Meanwhile, Stephanie was moving a seemingly nice patient who turned out to be a homicidal rapist. The rapist took her hostage and forced her to help him escape. But when the hospital went on lockdown, the two found themselves stuck on an empty floor alongside a lost girl. To save the girl, Stephanie set the rapist on fire.

The fire killed the rapist, and his burning body landed beside some large oxygen tanks that ruptured and caused a massive explosion. Unfortunately, Stephanie was at ground zero of the explosion, which normally would mean she has no chance of survival — but this is Shondaland, so anything can happen. Guess we’ll just have to tune in to next week’s finale to see what happens.